Connector jack 3.5 mm socket female mono open, 2-way straight — NINIGI

The NINIGI 3.5 mm female mono jack socket is an open-design, 2-way straight connector intended for simple mono audio connections and basic wiring tasks. Its compact straight form factor allows easy mounting in panels, enclosures or custom housings and provides two contact ways for signal and ground. The socket's open construction makes soldering and inspection straightforward, supporting quick repairs, DIY audio projects and straightforward installations that require a basic mono jack interface.

Advantages

This 3.5 mm mono jack offers a compact profile and a straight body that fits into shallow mounting spaces and slim panels. The open female socket design simplifies soldering, visual inspection and access to connection points. With two contact ways — signal and ground — it covers the essential wiring needs for mono audio paths while minimizing complexity. The unit is suitable for low-profile installations and can be integrated into small devices without requiring specialized tools for assembly.

Suitable for

• DIY audio builds and hobby electronics
• Repairing or replacing mono audio jacks in headphones, speakers or small devices
• Panel or enclosure mounting for simple audio inputs/outputs
• Prototyping circuits that require a basic signal and ground connection

Key specifications

• Connector type: 3.5 mm female mono socket
• Contact configuration: 2-way (signal and ground)
• Mounting style: straight, through-panel/enclosure compatible
• Construction: open design for easy soldering and inspection
• Form factor: compact, low-profile straight body

How to use

Mount the connector in a suitably sized panel cutout or secure it inside an enclosure so the socket is accessible from the exterior. Route the signal and ground wires to the two contact terminals visible in the open design and solder each conductor to the appropriate contact, observing polarity for the signal and ground. After soldering, check connections for cold joints and ensure there is no short between signal and ground. Reassemble the panel or enclosure and test the audio path with a mono plug inserted to confirm continuity and correct operation.

Usage recommendations

For reliable results, use appropriate soldering technique and a temperature-controlled iron suitable for small electronic contacts. Keep solder joints clean and avoid excess solder that could bridge contacts. When mounting to panels, ensure the cutout matches the connector body to prevent stress on the terminals; use strain relief on wiring where possible to reduce mechanical load on soldered joints.